Calculate the area of cross section of a wire if its length is 1m and its resistance is 23ohms and its resistivity is of the material of the wire is 1.84× 10 rays to -6
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Answer:
Area = 0.08 x 10^-6 m2
Explanation:
given that - L = 1 m
R = 23 ohm
p = 1.84 x 10 ^-6 ohm metre
A = ?
we know that
R = p L / A
A = p L / R
A = (1.84 x 10 ^-6 x 1 ) / 23
A = 0.08 x 10 ^-6 m2
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